CVE-2015-1635 KEV EXPLOIT
9.8
CRITICAL · CVSS 3.1 · EPSS 100% (pctl 100)
Patch first
On CISA KEV — known exploited in the wild, due 2022-08-10.
Description
HTTP.sys in Microsoft Windows 7 SP1, Windows Server 2008 R2 SP1, Windows 8, Windows 8.1, and Windows Server 2012 Gold and R2 allows remote attackers to execute arbitrary code via crafted HTTP requests, aka "HTTP.sys Remote Code Execution Vulnerability."
Scoring
| CVSS | 9.8 (CRITICAL, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 100% — more likely to be exploited than 100% of all CVEs |
| Weakness | CWE-94 |
| On CISA KEV | yes — remediate by 2022-08-10 |
| Public exploit | yes |
| Published | 2015-04-14 |
| Last modified | 2026-06-17 |
CISA KEV
| Name | Microsoft HTTP.sys Remote Code Execution Vulnerability |
|---|---|
| Added | 2022-02-10 |
| Due | 2022-08-10 |
| Vendor / product | Microsoft / HTTP.sys |
| Ransomware use | none reported |
Affected (5)
| Vendor | Product |
|---|---|
| microsoft | windows 7 |
| microsoft | windows 8 |
| microsoft | windows 8.1 |
| microsoft | windows server 2008 |
| microsoft | windows server 2012 |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | Microsoft Windows - 'HTTP.sys' HTTP Request Parsing Denial of Service (MS15-034) | 2015-04-16 |
| exploit-db | Microsoft Windows - 'HTTP.sys' (PoC) (MS15-034) | 2015-04-15 |
References
- http://packetstormsecurity.com/files/131463/Microsoft-Windows-HTTP.sys-Proof-Of-Concept.html
- http://www.osvdb.org/120629
- http://www.securityfocus.com/bid/74013
- http://www.securitytracker.com/id/1032109
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2015/ms15-034
- https://www.exploit-db.com/exploits/36773/
- https://www.exploit-db.com/exploits/36776/
- http://packetstormsecurity.com/files/131463/Microsoft-Windows-HTTP.sys-Proof-Of-Concept.html
- http://www.osvdb.org/120629
- http://www.securityfocus.com/bid/74013
- http://www.securitytracker.com/id/1032109
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2015/ms15-034
- https://www.exploit-db.com/exploits/36773/
- https://www.exploit-db.com/exploits/36776/
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2015-1635
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